Loom multiplier mechanism.



PATENTBD APR. 14, 190s.

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` pattern chain cylinder, and chain.

UITED STATES PATENT OFFICE.

RPPA H. RYON, OF WORCESTER, MASSACHUSETTS, ASSIoNoR To ORoMP'roN aKNowL-ES A LOOM WORKS, A CORPORATION or MASSAOHUSETTS.

LOOM MULTIPLIER MECHANISM.

Specification of Letters Patent.

Patented April 14, 1908.

Application filed December 18, 1905. Serial No. 292,145.

' speciiication.

My invention relates to a loom multiplier mechanism, by means of whichcertain bars of the shuttle box pattern chain may be repeated', `withoutmaking successive similar bars.

The object of my invention is to make an improved multiplier mechanismfor looms, in which a rotary and longitudinally moving cylinder or drum,having pins, or pattern indicating surfaces thereon, is used.

My invention consists in certain novel features of construction of myimprovements, as will be hereinafter fully described.

I have only shown in the drawings detached portions of the head motionof a loom of the well known Knowles type, shown and describedl inReissue Letters Patent, No. 7,784, and of the shuttle box pattern chainand operating mechanism, with my improvements combined therewith,sufficient to enable those skilled in the art to understand theconstruction and operation thereof.

Referring to the drawings-Figure 1 is a front View of a part of a headmotion, and of my multiplier mechanism combined therewith, looking inthe direction of arrow a, Fig. 4. Fig. 2 shows a different position ofsome' of the parts shown at the left in Fig. 1. Fig. 8 isa detachedsectional detail of the reversing worm,.shown in Figs. 1 and 2. Fig. 4isA a sectional end view or the parts shown in Fig. 1, on line 4, 4,same ligure, looking in the direction of arrow b. Fig. 5 is a section,on line 5, 5, Fig. 1, looking in the direction of' arrow b, same figure.Fig. 6 is a section, on line 6, 6, Fig. 7, looking in the direction ofarrow c, same figure, showing the shuttle box Fig. 7 is a rear view ofthe multi lier mechanism, looking inthe direction ofp arrow d, Fig. 4.Fig. 8 shows some of the parts shown at the left in Fig. 7, in adifferent position. Fig. 9 is aise'ction, on line 9, 9, Fi 4., lookingin the direction of arrow d, Same igigure, and, Fig. 10 shows a modifiedconstruction of the two pin 'wheels shown in Figs. 7, and 8, detached,Said pin wheels being faston a sleeve.

Inztlie accompanying drawings, 1 is a portion of the head frame, 2 theupper cylinder gear, 3 the lower cylinder gear, 4 a inion' on the lowercylinder gear shaft 5, whic meshes with a gear 6, to'drive said gear,fast on the pattern chain cylinder shaft 7. The pattern chain cylindershaft 7 has fast thereon a harness pattern chain barrel or cylinder 8,partially shown in Fig. 6, and also has loosely mounted thereon, ashuttle box pattern chain barrel or cylinder 9, carrying the patternchain 10, of any ordinary construction, vand in this instance consistingof rolls and tubes', mounted on bars in the usual way, seeFig. t6.

All of the above parts are of the usual and well known construction.

I will now describe my improvements.

The box pattern chain cylinder 9 is rotated independently of the patternchain cylinder Shaft 7, in this instance by a star wheel 11 connectedwith said pattern chain cylinder 9, and two pin wheels 12, and 1,43,located on opposite sides of the axis of the Star wheel 11, and in thisinstance fast Von a rotary and longitudinally moving shaft 14, mountedin suitable bearings 15 on brackets or sup Orts 15, secured to orforming a part of the oom frame, see Fig. 7. i

The engagement of one of the pin wheels, as 12, with the star wheel 11,will rotate said star wheel and the box pattern chain cylinder 9, in onedirection, and the engagement of the other in wheel, as 13, with thestar wheel 11, wil rotate the star wheel 11, and the pattern chaincylinder 9, in the oppositedirection. In case neither of the pin wheelsI2 or 13 is engaged with the star wheel 11, as shown in Fig. 8, the starwheel 11 .and lthe box pattern chain cylinder 9 will remain at rest, andthe star wheel will be held by the inner end of the hubs 12 and 13respectively ofthe pin wheels 12 and 13, extending into jhe recessedportions of the star wheel 11,see

ig. 8. i

The Shaft 14, having in this instance fast thereon the pin wheels 12 Yand 13, has a rotary movement communicated thereto through the bevelgear 16, mounted on said shaft between two of the bearings 15', andconnected therewith to rotate said shaft, and to allow the shaft to movelongitudinally within the hub of said gear, by a key 17, fast in thegear 16, and extending into a longitudinal Slot in the shaft 14, seeFig. 8. The bevelgear 16 meshes with` and is driven by a bevel gear 18,fast on a rotary Shaft 19, see

50 l' and each row has sixteen holes therein.

Tsuitable bearings on the frame, and having Figs. 4, 5, and 9, whichshaft extends transversely through the head, and is mounted in suitablebearings. On` the opposite end of the shaft 19, at the front of the headmotion, is fast a pinion 20, see'Figs. 1, and 5, having peripheral teeth20 thereon, which engage with the teeth on the gear 6, and is driven bysaid gear. The pinion 2O has also thereon the bevel teeth 20, see. Figs.1, and 5, to be hereinafter described. The longitudinal movement of theshaft 14, carrying the pin wheels 12 and 13, to cause the box patternchain cylinder 9 to turn in one direction or the other, or to remain atrest, is controlled by the multiplier pattern cylinder or drum asfollows :v

The pin wheel 13 has an annular groove 13 therein, into which extends apin on the lower end of alever 21, ivotally mounted at its upper end ona studD 21 on the frame 1,

see Figs. 7 and 8. The swinging lever 21 has an elongated opening 21therein, to receive a stud 22 on one end of a rod 22, the other end ofthe rod 22 is connected with a lever 23 fast on a rock shaft 24, mountedin adjustably attached thereto the hub 25 of the pattern indicatingfinger or lever 25, see Figs. 4, and 9. The indicating nger 25 extendsover the multiplier pattern` cylinder 26 to be engaged by a long patternpin 26 thereon, or a short pattern pin 26l thereon, or to extend into aspace between said pins, and not be engaged by any pin. In this waythree positions of the indicating finger or lever 25 is obtained. Aspring 22, in this instance a tension spring, attached at one end to astationary part of the frame, and at its other end to the upper end ofthe lever 23, acts to draw inwardly said lever, and to rock l the shaft24, and move down the finger 25.

' the pattern pins, which are arranged ac-` The multiplier patterncylinder 26 has rows of holes therein, at equal distances apart, andfurnished in this instance with a screw thread, to receive the threadedends of cording to the desired repeat of the pattern being woven. In thepresent instance, the multiplier pattern cylinder 26 has twenty rows ofholes 26t around its circumference, The cylinder may be made longer orshorter as desired. The rows of holes in the direction of the length ofthe pattern cylinder 26 are parallel to each other, but each row oflongitudinal holes is located at unequal distances from the ends of thecylinder, that is the holes extend helically around the cylinder.

The attern cylinder 26 has one end, shown at the eft in Fig. 5, with asquare hole therel` in, to fit onto the square portion 27 of the shaft27, which extends transversely through the head and is mounted insuitable bearings thereon. The opposite end of the pattern cylinder 26has a vthreaded hole therein,

adapted to receive and engage a worm or threaded sleeve 28. The threadedsleeve or worm 28 is loosely mounted onthe rounded part of the shaft 27,and has a longitudinal movement on said shaf-t, but is prevented fromturning with said shaft, in this instance by a projection 29 on thebearings 29, extending into a notch or recess 28 inthe end of the worm28 ,see Figs.4, and 5. The worm 28 has a double thread thereon with alead corresponding to the circumferential rows of holes 26L in thecylinder 26, and mechanism is provided, or an arrangement is made sothat as the cylinder 26 is revolved around the worm 28, the indicatingfinger 25 will follow one row of circumferential holes in the cylinder26 when it revolves in one direction, and will follow the contiguouscircumferential row of holes when it is revolved in the oppositedirection.

When the shaft 27 rotates in one or the other direction, through drivingmechanism to be hereinafter described', the multiplier pattern cylinder26 rotates with it, and moves longitudinally in one 'direction or theother, according to the direction of rotation of the cylinder 26 inengagement with the worm 28, and the pattern pin 26 moving under theindicating finger 25 raises said finger, and through shaft 24, lever 23,rod 22, and lever 21, in this instance moves the pin wheel 12 intoengagement withthe star wheel 11, to

rotate the pattern chain cylinder 9 in one direction. The pattern pin 26moving under the finger 25 raises said finger, and through shaft 24,lever 23, rod 22, and lever 21 moves the pin wheels, 12 and 13, both outof engagement with the star wheel 14, as

shown in Fig. 8, leaving the pattern chain cylinder 9 at rest. f ln caseno pattern pin comes under the finger 25, then, through the action ofthe spring 22, the finger 25 is lowered, and through shaft 24, lever 23,rod 22, and lever 21, the pin wheel 13 is moved into engagement with thestar wheel 14, and the pattern chain cylinder 9 is rotated in theopposite direction.

The longest pattern pin 26 in this in- .l stance shown as the last pinon the right hand end of the multiplier pattern cylinder 26, see Fig. 5,and by broken lines in Fig. 9, is adapted to move under a finger orlever 30, extending over the pattern cylinder, and fast on one end ofthe long hub or sleeve 30',

loosely mounted on the shaft 24, see Fig. 4. On the other end of thesleeve 30 is fast a I second finger or arm 30a, see Fig. 4.

Vhen the longestpin 26 comes under the engaging end of the finger orlever 30, said lever is raised up and the sleeve 30 rocked, and throughan arm 30 on said' sleeve, which has an opening therein to receive 'apin 31 on an arm 31 fast on a rotary shaft 32, see Figs. 4, and 9, saidshaft 32 is rocked.

On the shaft 32, which is mounted suitable bearings, is fast the hub 33of a forked arm 33, the forked end of which engages with an annulargroove 34 in the hub of a pin 'wheel 34, see Fig. 1, to move said. pinwheel, splined on the shaft 35, which is mounted in suitable bearings,into engagement with a star wheel 36 loosely mounted on a stud 37,supported in a bracket 38. A spring 33 coiled around the hub 33 of thearm 33, and bearing at one end against the inside of said arm, and atits other end against a stationary part, acts to move outwardly the arm33, and disengage the pin wheel 34 from the star wheel 36.

The star wheel 36 has a hub 36 on one side thereof, with a cam groove 36therein, to receive a pin on the upper end of a swinging lever 39, whichlever is pivotally mounted at its lower end ona stud 40. The lever 39 isconnected by a link 41 with one arm of an angle lever 42. The other armof the angle lever 42 is adjustably connected with .the upper end of alink 43, the lower end of which is pivotally connected with one arm ofan angle lever 44, pivotally mounted on a stud 45, see Fig. 5. The otherarm of the angle lever 44 carries a pin 44, which extends into anannular groove 28" at the end of the threaded sleeve or worm 28, seeFig. 5.

The shaft 35 has a rotary motion commu nicated thereto, from the bevelteeth 20 on the pinion 20, which mesh with the bevel gear46 fast on theinner end of the shaft 35, see Fig. 1. On the shaft 35 is in thisinstance a segment or detached portion 47 of a worm, having a straighttooth or dwell portion, and secured to the shaft 35, in this instance byscrews 47/, see Fig. 3. Loosely mounted on the shaft 35, and adapted tomove longitudinally thereon, is a sleeve 48, having thereon two wormtoothed portions 48, a right and left, and each one adapted to be movedinto line with the worm portion 47, fast on the shaft 35, to form onecomplete worm thread, either a right or left hand thread. The sleeve 48has in this instance at one end, an annular groove 48 therein, toreceive the yoke shaped lower end of one arm of the angle lever 42. Onthe front end of the multiplier pattern cylinder shaft 27 is fast a wormgear 49, which is adapted to be engaged by and rotated through therotation of the reverse worm 48, in one direction or the other,according to the position of the reverse worm 4S, see Figs. 1, and 2.The worm or sleeve 48, loose on the shaft 35, in connection with thesegment 47 fast on said shaft, acts as a reversing worm, to rotate thepattern cylinder shaft 27 in either direction, and through the rotationof said shaft, to rotate the pattern cylinder 26, in either direction.

The movement of the lever 42, through link 41 and lever 39, moved by therotation of the star wheel 36 having the cam groove hub 36', will movethe reversing worm sleeve f y 48 longitudinally on the shaft 35, intothe position shown in Fig. 1, to cause the worm gear 49 to rotate in onedirection, or into the position shown in Fig. 2, to cause the worm gear49 to rotate in the opposite direction. The rotation of the worm gear 49rotates the shaft 27 and with it the pattern cylinder 26. The movementof the lever 42, through link 43 and angle lever 44, will move the worinsleeve 28 longitudinally on the shaft 27 and with it the patterncylinder 26, to bring a different series of holes and pattern pins underthe indicating finger 25.

When in the revolution of the pattern cylinderl 26 the longest patternpin 26 comes under the indicating finger 30, then said finger is raisedand the sleeve 30 rocked, and through the arm 30, the shaft 32 isrocked, and the forked arm 33 moved to cause the pin wheel 34 splined onthe rotary shaft 35, to move into engagement with and rotate the starwheel 36. The rotation of the star wheel 36, through the cam groove 36in the hub thereof, and the swinging lever 39, link 41, and angle lever42, cause the reversing worm 47 to be moved in one direction or theother; and at the same time, through link 43 and angle lever 44, theworm 28 will be moved longitudinally on the shaft 27, and cause thecylinder 26 to be moved longitudinally.

ln Fig. 10 is shown a modified construction of the pin Wheels 12 and 13.In said figure, the pin wheels 12 and 13 are shown fast on each end of asleeve 14a, which sleeve may be loosely supported on the shaft 14 andhave a longitudinal movement thereon, instead of the shaft 14 having alongitudinal movement, as above described.

It will be understood that the details of construction of myimprovements may be varied if desired, and they may be adapted to beapplied to different forms of box pattern chain mechanisms.

The driving mechanism particularly shown in Figs. l, 2, and 3 is notclaimed herein, as the same forms the subject-matter of anotherapplication, a division of this application.

Having thus described my invention, what l claim as new and desire tosecure by Letters Patent is l. In a multiplier mechanism, a multipliercylinder having two rows of pattern surfaces arranged in parallelhelical curves around the periphery thereof, an arm adapted to bearagainst said pattern surfaces, means vto rotate said cylinder, and meansto shift said cylinder longitudinally to change the operating rows ofpattern surfaces relative to said arm.

2. In a loom pattern mechanism, a multiplier mechanism, a pattern chaincylinder, a wheel connected therewith, and means controlled by themultiplier mechanism, to rotate said wheel in a forward or backwarddirection a predetermined number of picks or cause it to remain in alocked position.

als

4. In a loom pattern mechanism, a pattern chain cylinder, a multipliermechanism, means operative to rotate said cylinder 1n a i forward orbackward direction, and means to lock said cylinder in a position ofrest, said means consisting of asliding and a rotatable double pin wheelcontrolled by said multiplier mechanism.

5. In a loom pattern mechanism, a rotatable cylinder, a plurality ofpattern surfaces on the periphery thereof, a support for one end of saidcylinder having a screw-thread thereon, a rotatable shaft extendingthrough said cylinder, connection between said shaft and said cylinder,and means to impart to said shaft a step by step rotation.

6'. In a loom pattern mechanism, a multiplier pattern cylinder, aworm-wheel connected therewith, a worm having a dwell thread portion,and a right and a left hand thread portion, and means to slide saidright and left hand thread portion, to bring either the right or lefthand thread into engagement with the teeth of said worm-gear to turn thesame.

7. In a loom pattern mechanism, a pattern cylinder, a worm gearconnected therewith, a worm having a dwell thread portion, and av rightand a left hand thread portion, and means to rotate said worm, and meansto bring either the right or left hand thread portions into alinementwith the dwell thread portion.

8. In a loom pattern mechanism, the combination with a pattern chaincylinder, of a star wheel, a pin wheel having two pin portions and alocking portion thereon, to 'be moved to bring either pin portion intoengagement with said star wheel, or both pin portions out of engagementwith said star wheel, and the locking portion into engagement'with saidstar wheel.

9. ln a loom pattern mechanism, the combination with a pattern chaincylinder, of a star wheel, a pin wheel having two pin portions, and alocking portion thereon, to be moved to bring either pin portion in thepath of said star wheel, or both pin portions out of the path of saidstar wheel, a multiplier mechanism, and means controlled by saidAmultiplier mechanism to move said pin wheel longitudinally.

10. In a loom pattern mechanism, a pattern cylinder having patternsurfaces thereon, and means to drive said cylinder, one or more of saidpattern surfaces adapted to engage a lever, and said lever, a cam anddriving mechanism. therefor, and connections from said lever to thedriving mechanism of said cam, and connections from said cam, to thedriving mechanism of said cylinder, and to the mechanism for moving saidcylinder longitudinally and said last mentioned mechanism.

EPPA H. RYON.

l/Vitnesses:

J. C. DEWEY, M. HAAs.

